Comparison of SI candidate models.

Models 1, 3, 6, and 11 were selected as candidate models for SI. Abbreviations: SI, Survival index; AIC, Akaike information criterion; HL test, Hosmer-Lemeshow test; BMI, body mass index; Cr, serum creatinine level; Alb, serum albumin level; Tchol, serum total cholesterol level; P, serum phosphorus level; CVDs, cardiovascular diseases as comorbid conditions; HT, hypertension; AVF, arteriovenous fistula use. Comparison of SI candidate models.